New comment by q66 on void-packages repository

https://github.com/void-linux/void-packages/pull/15677#issuecomment-546671055

Comment:
gcc  9.2:

```
main.c:195:8: error: ignoring return value of 'fread', declared with attribute warn_unused_result [-Werror=unused-result]
```

Arch etc. should not matter